I received an email from a friend with the following text and attachment.

"How about this for a pic of the piers at Port Melbourne. Thems were the days – 3 carriers at Station pier !!! The one closest in appears to be the Sydney ( no angled flight deck ) and the 2 behind her are Pommie carriers. Both of them look like the same class.

Could be Illustrious Class. None of them have angle flight decks which were a feature from the mid fifties. I’m guessing the pic was taken around 1954 – 56 although it could have been just before the Korean war which started in 1950. We got the Sydney in 1948."

Bruce is right. Glory in the front; Implacable astern of her, and Indefatigable on its own on the other side of the pier. They attracted huge crowds, and as someone below has said, a proud moment for the RN. First seen here is Implacable, second is Glory.